JP4495147B2 - Pilot drill, step drill and drill set for dental transplantation technology - Google Patents

Description

  The present invention relates to a pilot drill, a step drill, and a drill set composed of them for use in dental transplantation technology. This pilot drill is used to create a pouch-shaped pilot hole that forms in the human jawbone in preparation for a stepped hole, which can be one or, in the case of a further enlargement of the stepped hole, a plurality of different stepped holes. With holes. The prepared stepped hole is determined to accommodate the dental implant (transplant), in particular in the form of a bolt. In a bolted implant, the prepared drill hole can be provided with an internal thread before application, or the implant self-cuts, whereby the internal thread is cut by rotation of the implant into the jawbone. The invention preferentially relates to a bolt-shaped dental implant. The treated implant forms a tether for assembly.

  Various solutions are known for completing the receiving hole as an implant bed. Non-Patent Document 1 (SCHROEDER, A .; SUTTER, F .; BUSER, D .; KREKELER, G., “Oral Transplant Technology” published by Georg Thieme, Stuttgart, 2nd edition, 1996, 153, FIG. 7, 42c ) Shows a drill set consisting of one rose drill and three spiral drills with increasing cross section. In this case, the balladrill is used to mark a position on the skin layer where a hole is provided. Directly speaking, the cortex and cancellous are drilled by the first spiral drill.

Vieland Dental Technology Ltd. in Pforzheim, Germany (zip code D-75179) offers a drill series for self-cutting bolt-like implants with a diameter of 3.3 mm and a conical neck part, from the following drill instruments Become:
a) an initial drill to precisely drill the position;
b) φ1.8 mm spiral drill that prepares holes to full depth;
c) φ1.8 mm / φ2.5 mm step drill that enlarges the hole diameter to φ2.5 mm;
d) a φ2.5 mm spiral drill that expands the hole to φ2.5 mm over the entire depth;
e) A conical drill with a φ2.5 mm guide that enlarges the hole opening.

  Up to four additional drills are used in the treatment of implants having a diameter of 5.5 mm. Prior to use of the next large drill, the existing hole is expanded over the short exit area to the next larger diameter diameter to ensure optimal centering of the next drill. Alternatively, the next drill increases the diameter only slightly. This leads to the need for many drilling tools and work steps.

  An implant innovation company in the United States offers a drill set and the next large diameter so that the existing hole ensures good centering of the next drill over a short exit area before the next large drill is used Expanded to For this, a respective step drill is used. This step drill has a round protrusion at the apex of the diameter of the preceding drill, and the protrusion does not have a function of centering the hole and cutting. Again, this system requires a step drill and a matching spiral drill for each drill diameter, so again many drilling instruments and work steps occur.

Finally, the drill series of FRIADENT limited company in Mannheim, Germany (zip code D-68229) is known. For example, the following drill is used for a self-cutting three-stage bolted implant φ5.5 mm:
a) φ2.0 mm preliminary drill that accurately drills the position and gives an axial direction;
b) a φ3.4 mm balladrill that enlarges the hole opening to φ3.4 mm;
c) A three-step step milling to prepare a three-step hole φ3.4 mm;
d) three-step step milling to prepare a hole φ3.8 mm;
e) Three-step step milling with hole φ4.5 mm; and f) Three-step step milling with hole φ5.5 mm.

  Due to the special three-step geometry of the implant, one system was selected here, which already expanded the three-step shape of the implant based on the second hole, with each wide step The shape is enlarged. Depending on the diameter of the implant, the hole is enlarged by several use of step milling. However, based on the multi-step geometry, one needs a special set of step milling for each implant length. That leads to instrument diversity here, so the three-stage milling is obviously expensive.

In all selected drill-series, a short hole is initially provided in the jawbone to fix the position of the next drill, thereby giving the correct orientation and subsequently expanding the hole continuously. All the introduced drill systems require multiple work steps-drilling process and drill exchange-when different drilling diameters should be provided, which creates the need for increased time and surgical measures Complicating, requiring relatively many different instruments and increasing the risk of mistakes.
SCHROEDER, A .; SUTTER, F .; BUSER, D .; KREKELER, G., "Oral Transplant Technology", Stuttgart, Georg Thieme Publisher, 2nd Edition, 1996, 153, Figure 7, 42c.

  In view of the deficiencies in existing drilling tools, the object of the present invention is to create an improved pilot drill. Another challenge is the creation of an improved step drill. An additional problem is to propose a drill set which can be used preferably from a pilot drill and a step drill. In this case, the hole provided should start by penetrating the jawbone at a location that is very accurately implanted and fitted locally to ensure the correct position of the implant and the subsequent denture. The hole direction must be precisely aligned in order to optimally receive a load that subsequently acts on the denture. In the preparation of an implant bed, the jawbone should be required as little as possible. The preparation of the hole must be done easily and in a time-saving manner with a small handgrip, so that only a few instruments are required. Ultimately, it costs the costs of holding it deep.

  As a pouch-shaped stepped hole to be provided in the human jawbone—in order to prepare an implant bed for receiving a dental implant—a pilot drill is provided. The pilot drill has a pilot tip having a tip blade at the apex end thereof. A pilot guide extends from the pilot tip in the direction of the corona end of the pilot drill, and a drill neck is positioned on top of the pilot guide, the drill neck having a drill diameter larger than the drill diameter of the pilot guide. A drill shaft is connected to the drill neck and has a dental joint with a standardized pilot drill as the corona end so that the dental joint is common for dentist handpieces in electric drilling machines. There is at least one guide blade next to the pilot guide. At the transition from the pilot guide to the drill neck there is one step with at least one step blade. Extending along the pilot drill is at least one spiral groove and an angular slope defining the groove. The characteristic of the pilot drill is that, first of all, the tip blade is sharply formed at the pilot tip, the center cutting is performed, and the polishing portion extends from the tip blade to the pilot guide. While the stepped blade in the stepped portion is formed to cut, the guide blade is configured to be round so as not to cut.

  The following features signify a preferred embodiment of the invention; the drill neck with the angled bevel is shaped to cut weakly. The pilot guide has a length in the range from 1.0 mm to 4.0 mm, for example 3.0 mm. In particular, a pilot drill is formed on both blades, each having two tip blades, a grinding part, a guide blade, a spiral groove, an oblique surface and a stepped blade. The drill neck has at least the length of the insertion depth of the implant (transplanted tissue) to be used. The pilot guide has a diameter in the range of 1.5 mm and the drill neck has a diameter in the range of 2.0 mm. The tip angle located between the tip blades is smaller than 90 °, in particular in the range of 80 °. A spiral groove extends from the corona end of the drill neck to the pilot tip and the pilot guide has only a small percentage of the total cross-section present in the drill neck due to the smaller diameter of the spiral groove. In order to control the penetration depth of the pilot drill, a plurality of visible depth marks are attached to the drill neck at regular intervals or at irregular intervals.

  The pilot guide having the pilot tip is determined so as to fix the position to the stepped hole to be formed by allowing the tip of the pilot hole to penetrate through the cortical layer of the jawbone. It consists of parts. Since the step results in significantly increased drilling resistance upon completion of the pilot hole guide and tip after penetrating the skin, it is determined so that the surgeon can inspect the hole direction determined by this indication. The round guide blade makes it possible to correct the hole direction within the conical correction range without enlarging the pilot hole guide. The drill neck is determined by its dimensions to form the pilot hole at the final depth.

  In order to expand the pouched pilot hole provided in the human jaw bone in advance to the stepped hole, or to a further enlarged stepped hole as a receiving part for a dental implant (transplanted tissue). A step drill is provided to enlarge the stepped hole. The step drill has a stepped tip disposed at the tip of the step drill and having a tip blade. The stepped guide extends from the stepped tip toward the corona end of the step drill. A drill neck is located at the top of the step guide, and the drill neck has a drill diameter larger than the drill diameter of the step guide. A drill shaft is connected to the top of the drill neck, and a standardized dental joint is positioned at the corona end of the step drill so as to apply to the dentist handpiece of the electric drill machine. The step drill has at least one guide blade located beside the step guide. At the transition from the step guide to the drill neck, one step having at least one step blade is formed. The step drill has at least one spiral groove and an oblique surface that defines the groove. The characteristic of the step drill is that, first of all, the tip blade is sharply formed at the stepped tip, and the polishing portion extends from the tip blade to the stepped guide. While the stepped blade in the stepped portion is formed to cut, the guide blade is formed to have a rounded tip so as not to cut.

  The following features signify a preferred embodiment of the present invention; the beveled drill neck is designed to cut weakly. The stepped guide has a length in the range of 2.0 mm. In particular, the step drill is formed in three blades, each having three tip blades, a grinding part, a guide blade, a spiral groove, a beveled surface and a stepped blade. The drill neck has at least the length of the insertion depth of the implant (transplanted tissue) to be used. The stepped guides of the various, ie second and third step drills, have a diameter in the range of 2.0 mm, 2.8 mm, or 3.5 mm, and these first, second and third steps The drill neck has an associated diameter in the range of 2.8 mm, 3.5 mm, or 4.3 mm. The tip angle located between the tip blades is greater than 90 °, in particular in the range of 120 °.

  The spiral groove extends through from the corona end of the drill neck to the stepped tip, and the stepped guide has a significant proportion such that the spiral groove is present in the drill neck of its entire cross-section with a smaller diameter. In order to check the penetration depth, a plurality of visible depth marks are attached to the drill neck at regular intervals or at irregular intervals. A stepped guide with a stepped tip and a round guide blade is centered on the pilot hole or stepped hole when installing the step drill, and centered on the pilot hole or along the stepped hole when moving forward. It is decided to guide together. The stepped portion having the guide blade is determined so that the pilot hole having the previous diameter is expanded to a new diameter, or the stepped hole having the previous diameter is expanded to the new diameter.

  In order to prepare an implant bed for receiving a dental implant in a pouch-shaped pilot hole to be provided in a human jawbone, a drill set is first provided consisting of the pilot drill for first providing a pilot hole. In addition, at least one first step drill is part of the drill set and enlarges the existing pilot hole relative to the stepped hole. This drill set is supplemented by an optional second said step drill for the second enlargement of the existing stepped hole to the further enlarged stepped hole. Finally, any third said step drill for third expansion of a stepped hole already doubled to the last expanded stepped hole is part of the drill set.

  Embodiments of the arrangement of the present invention will now be described in detail with reference to the accompanying drawings.

  The following decisions apply to all other explanations: the figures include reference numbers for clarity of the figures, but are not explained in the accompanying explanatory text, but the preceding figure description The reference is mentioned. In order to be self-explanatory, repeated names of components are often abandoned in the next figure or the same figure, as long as it is clearly recognizable that the "repeated" component is important. .

1A and 1B
The pilot drill 1 is used to prepare a bag-like stepped hole provided in a jawbone so as to receive a dental implant. A pilot tip 10 is present at the apex end of the pilot drill 1, and a tip blade 101 disposed at the pilot tip forms a tip angle α. The pilot guide 11 extends from the pilot tip 10 toward the corona end of the pilot drill 1. At the top of the pilot guide 11 is a drill neck 12, which has a drill diameter b2 that is larger than the drill diameter b1 of the pilot guide 11. A drill shaft 13 is connected to the drill neck 12, and a standardized dental joint 14 is provided at the corona end of the pilot drill 1, which dental joint is used for receiving in a dentist handpiece. Is typical of drilling machines. Guide blade 112 located beside at least one pilot guide 11, stepped portion 124 as a transition from pilot guide 11 to drill neck 12, at least one stepped blade 125 in stepped portion 124, at least one spiral groove 122 In addition, there is an oblique surface 123 that defines the groove.

  The tip blade 101 at the pilot tip 10 is sharply formed and cut at the center. The polishing part 111 extends from the tip blade 101 to the pilot guide 11. The stepped blade 125 in the stepped portion 124 is formed to cut, while the guide blade 112 is formed to have a rounded tip so as not to cut. All drill necks 12 with beveled surfaces 123 are shaped to cut weakly. The pilot guide 11 has a length L1 within a range from 1.0 mm to 4.0 mm.

  In particular, the pilot drill 1 is formed in two blades, and thus has two tip blades 101, a polishing portion 111, a guide blade 112, a spiral groove 122, a beveled surface 123 and a stepped blade 125, respectively. The drill neck 12 has at least the length of the insertion depth of the implant to be applied, and the pilot guide 11 has a length L1 of 3.0 mm. The pilot guide 11 has a diameter b1 in the range of 1.5 mm and the drill neck 12 has a diameter b2 in the range of 2.0 mm. The tip angle α located between the tip blades 101 is smaller than 90 °; in particular, α is in the range of 80 °. The spiral groove 122 extends from the corona end of the drill neck 12 to the pilot tip 10. In the pilot guide 11, the spiral groove 122 has only a slightly larger proportion of the total cross section present in the drill neck 12 through a small diameter b1. In order to control the drilling depth during the drilling process, a plurality of visible depth marks 121 are attached to the drill neck 12 at regular intervals or at irregular intervals.

2A and 4B
The sequence in this figure shows a first step drill 2 (FIGS. 2A and 2B) with a minimum diameter, a second step drill 2 (FIGS. 3A and 3B) with an intermediate diameter, and a maximum and minimum diameter. A third step drill 2 (FIGS. 4A and 4B) is shown.
The step drill 2 is present for expanding the pouch-shaped pilot hole existing in the jawbone with respect to the stepped hole, or for a further enlarged stepped hole as a receiving part for a dental implant (transplanted tissue). Used to further expand the stepped hole. A stepped tip 20 having a tip blade 201 is located at the apex end of the step drill 2. A stepped guide 21 extends from the stepped tip 20 in the direction of the corona end of the step drill 2. At the top of the stepped guide 21 is a drill neck 22, which has a drill diameter b3, b4, b5 that is larger than the drill diameter b2 ', b3', b4 'of the stepped guide 21. A drill shaft 23 is positioned above the drill neck 22 and a dental joint 24 standardized as a corona end is connected to the drill shaft. The guide blade 112 positioned beside the at least one step guide 21, the step portion 224 as a transition portion from the step guide 21 to the drill neck 22, the at least one step blade 225 in the step portion 224, and the groove are limited. There is at least one spiral groove 222 having a beveled surface 223. The tip blade 201 at the stepped tip 20 is sharply formed. The polishing portion 211 extends from the tip blade 201 to the stepped guide 21. The stepped blade 225 in the stepped portion 224 is formed to cut, while the guide blade 212 is formed to have a rounded tip so as not to cut. All drill necks 22 with beveled surfaces 223 are shaped to cut weakly. The stepped guide 21 of the first, second and third step drills 2 has a uniform length L2, L3, L4 within a range of 2.0 mm.

  In particular, the step drill 2 is formed in three blades, and thereby has three tip blades 201, a polishing portion 211, a guide blade 212, a spiral groove 222, an oblique surface 223, and a stepped blade 225, respectively. The drill neck 22 has at least the length of the insertion depth of the implant to be applied. The stepped guide 21 in the first step drill 2 has a diameter b2 'in the range of 2.0 mm, while the attached drill neck 22 has a diameter b3 in the range of 2.8 mm. The stepped guide 21 in the second step drill 2 has a diameter b3 'in the range of 2.8 mm and its drill neck 22 has a diameter b4 in the range of 3.5 mm. Finally, the stepped guide 21 in the third step drill 2 has a diameter b4 'in the range of 3.5 mm and its drill neck 22 has a diameter b5 in the range of 4.3 mm.

  The tip angle β located between the tip blades 201 is larger than 90 °, and in particular, β is located within a range of 120 °. The spiral groove 222 extends from the corona end of the drill neck 22 to the stepped tip 20. Due to the smaller diameters b2 ', b3', b4 'in the step guide 21, the spiral groove 222 adopts only a slightly larger proportion of the total cross-section present in the drill neck 22. Furthermore, to control the drilling depth during the drilling process, the depth marks visible at the drill neck 22 are mounted at the same or non-uniform spacing.

In this continuous view from FIG. 5 to FIG. 8 , a depth gauge 3 (FIG. 5) for the pilot drill 1 is shown, a depth gauge 3 (FIG. 6) for the first step drill 2 is shown, and the second step A depth gauge 3 (FIG. 7) for the drill 2 is shown, and a depth gauge 3 (FIG. 8) for the third step drill 2 is shown.
The depth gauge according to FIG. 5 for the pilot drill 1 has a guide 31 with a diameter t1, a length k1 and a tip 30 located at the bottom at the apex. A neck 32 having a depth mark 321 is cut in the guide 31. The neck 32 is followed by a holding area 33 having a transition 331 to the head 332. The diameter t1 of the guide 31 is the same as or slightly smaller than the diameter b1 of the pilot guide 11 of the pilot drill 1. In particular, the length k1 of the guide 31 is slightly larger than the length L1 of the pilot guide 11 of the pilot drill 1. Similarly, the diameter t2 of the neck 32 of the depth gauge 3 is formed to be the same as or slightly smaller than the diameter b2 of the drilling neck 12 of the pilot drill 1. The diameter and length relationship ensures that the depth gauge 3 is moved without problems to measure the depth in the drilled hole, and that the effective depth of the drilled hole generated by checking the subsidence depth at the depth mark 321 is ensured. Allows to be determined.

  The depth gauge 3 according to FIG. 6 for the first step drill 2 has a guide 31 with a diameter t 2 ′ which is the same as or slightly smaller than the diameter b 2 ′ of the stepped guide 21 of the first step drill 2. The length k2 of the guide 31 is preferably larger than the length l2 of the stepped guide 21 of the step drill 2. Similarly, the diameter t3 of the neck 32 is the same as or slightly smaller than the diameter b3 of the drill neck 22 of the first step drill 2.

  The depth gauge 3 according to FIG. 7 for the second step drill 2 has a guide 31 with a diameter t 3 ′ which is the same as or slightly smaller than the diameter b 3 ′ of the stepped guide 21 of the second step drill 2. The length k3 of the guide 31 is a minimum larger than the length l3 of the stepped guide 21 of the step drill 2. Similarly, the diameter t4 of the neck 32 is the same as or slightly smaller than the diameter b4 of the drill neck 22 of the second step drill 2.

  The depth gauge 3 according to FIG. 7 for the third step drill 2 is created analogously. The guide 31 has a diameter t4 'that matches the diameter b4' in the stepped guide 21 of the third step drill 2. The length k4 of the guide 31 corresponds to the length l4 of the third step drill 2, and the diameter t5 of the neck 32 matches the diameter b5 of the drill neck 22 of the third step drill 2.

FIG.
The implant 4 is of a construction known per se, starting at the apex 41 at the apex, which first 41 continues first to the shaft 42 and to the neck 43 as the corona end. From the tip 41, a thread blade geometry 44 is provided with an external screw 421 and extends to a shaft 42 having a core diameter i3. The stronger implant 4 has a core diameter i4 or i5 (see FIGS. 12 and 13). Of particular importance in relation to the hole to be formed in the jawbone is the round part 411 and the conical blade region 441 and the conical blade region 442 at the implant tip 41. This geometry allows an accurate fit seat for the implant 4 without large hollow space and excessive bone compression due to the bone cutting that occurs when rotating in a hole prepared in the jawbone appropriately. obtain.

FIG.
The handling by the pilot drill 1 and the attached depth gauge 3 will be described. The mouth situation is schematically illustrated in the jawbone 5, i.e. without the gums. It is assumed that the pilot drill 1 is inserted into the handpiece of a normal dentist drill machine.

Scan STEP 1
By means of the pilot drill 1-due to the diameter b1 of the drill in the pilot guide 11 and the diameter b2 at the drill neck 12-the cortex 51 under which the cancellous material 52 is located at a predetermined position in the jawbone 5 is drilled by the pilot tip 10. The pilot drill 1 is oriented in the drilling direction R. During drilling, the surgeon feels increased resistance, and the step 124 is placed on the cortex and the cortex is used as a diagram to interrupt the drilling process and guide the second step.

Scan STEP 2
An optical control of the position of a pilot hole 61 provided for installation in the jawbone 5 is performed. The pilot hole 61 includes a pilot hole tip 610 formed through the hard cortex 51 and a pilot hole guide 611. Yes. In particular, it is controlled whether the planned drilling directions R match. The pilot guide 11 including the pilot tip 10 is determined so that the positions of stepped holes 62, 63, 64 to be manufactured separately are determined by attaching the projections of the pilot holes 61 through the cortex 51.

Scan STEP 3
The stationary pilot drill 1 is installed in a newly curved pilot hole 61. Within the conical correction range K, the planned perforation direction R is determined in relation to the surrounding mouth situation and further perforation processing is started, whereby the predetermined perforation direction R is determined. The round guide blade 112 allows this modification without the pilot hole 611 being enlarged.

Scan STEP 4
The pilot hole 61 in the drilling direction R modified in some cases is formed to a full drilling depth. The depth mark 221 can be controlled to enter the sponge 52.

Scan STEP 5
An attached depth gauge 3 having a diameter t2 at the neck 32 is introduced into the pilot hole 61, and the pilot hole 61 generated by checking the subsidence depth by reading at the depth mark 321 is controlled to an accurate depth.

Scan STEP 6
A pilot hole 61 formed with a pilot hole tip 610 located at the bottom of the hole, a pilot hole guide 611 connected to the tip, and a pilot hole 612 rising by a corona communicating with the cortex 51 is optically inspected.

FIG.
Handling by the first step drill 2 and the corresponding depth measurement gauge 3 are performed. It is envisaged that the first step drill 2 and possibly the second and third step drills 2 that are subsequently used are also inserted into the dentist handpiece.

Scan STEP 6
The formed pilot hole 61 was optically inspected (as a takeover of step 6 from FIG. 10).

Scan STEP 7
With the first step drill 2-due to the diameter b3 at the drill neck 22-the stepped guide 21 with the drilling diameter b2 'is inserted into the pilot hole 61 and controlled in the corrected direction.

Scan STEP 8
The drilling process is started and the first stepped hole 62 is drilled to full depth. The stepped guide 21 present in the step drill 2 has a guide blade 212 with a rounded tip, which ensures that the drill neck 22 that does not cut laterally is centered optimally with the pilot hole 61. The lateral drift of the holes is essentially eliminated. In the three-blade configuration, the step drill 2 has outstanding alignment characteristics. In the step portion 224 having the stepped blade 225, the pilot hole 61 having the diameter d1 / d2 is enlarged to the diameter d2 / d3.

Scan STEP 9
An associated depth gauge 3 having a diameter t3 in the neck 32 for the first step drill 2 is inserted into a first stepped hole 62 formed to inspect the formed drilling depth.

Scan STEP 1 0
Optical control of a first stepped hole 62 formed by a stepped tip 620 located at the bottom of the hole, a stepped guide 621 following the stepped tip 621, and a stepped neck 622 that is raised by the corona and communicates with the cortex 51 .

Scan STEP 1 0. 1
The implant 4 having the smallest core diameter i3 can be inserted into the existing first stepped hole 62. In this case, the implant 4 itself cuts an internal thread in the jawbone 5.

Scan STEP 1 0. 2
The implant 4 with the smallest core diameter i3 is suitably placed in the first step hole 62.

FIG.
If it is intended to insert an implant 4 with a larger core diameter as i3, a procedure with a second step drill 2 and an associated depth measuring gauge 3 is performed.

Scan STEP 1 0
The formed first step hole 62 was optically inspected (as a takeover of step 10 from FIG. 11).

Scan STEP 1 1
With the second step drill 2-due to the diameter b4 at the drill neck 22-the stepped guide 21 with the drilling diameter b3 'is inserted into the first stepped hole 62 and controlled in the corrected direction.

Scan STEP 1 2
The drilling process was started and the second stepped hole 63 was drilled to full depth. The stepped portion 224 having the stepped blade 225 has an effect that the stepped hole 62 having the diameter d2 / d3 is enlarged to the formed second stepped hole 63 having the diameter d3 / d4.

Scan STEP 1 3
A suitable depth gauge 3 having a diameter t4 at the neck 32 for the second step drill 2 is inserted into a second stepped hole 63 formed to control the resulting drilling depth.

Scan STEP 1 4
Similar to the first stepped hole 62, a stepped tip 630 located at the bottom of the hole, a stepped guide 631 next to the stepped neck 632, and a stepped neck 632 formed by a corona is formed. Optical control.

Scan STEP 1 4. 1
The implant 4 having a three-core diameter i4 can be inserted into the second stepped hole 63 which is now present.

Scan STEP 1 4. 2
An implant 4 having an intermediate core diameter i4 is suitably placed in the second stepped hole 63.

FIG.
If the implant 4 with the maximum core diameter is inserted as i5, the procedure with the third step drill 2 and the attached depth measuring gauge 3 is performed.

Scan STEP 1 4
The formed second step hole 63 was optically inspected (as a takeover of step 14 from FIG. 12).

Scan STEP 1 5
By means of the third step drill 2-with the diameter t5 at the neck 22-the step guide 21 with the drilling diameter b4 'is inserted into the existing second step hole 63 and again controlled in the modified drilling direction R.

Scan STEP 1 6
A drilling process was performed and the third stepped hole 64 was drilled to full depth. The stepped portion 224 having the stepped blade 225 has an effect that the second stepped hole 63 having the diameter d3 / d4 is expanded to the formed third stepped hole 64 having the diameter d4 / d5.

Scan STEP 1 7
The corresponding depth teaching 3 with the diameter t5 at the neck 32 for the third step drill 2 is inserted into a third stepped hole 64 formed to control the exact drilling depth.

Scan STEP 1 8
Optical control of a third stepped hole 64 formed by a stepped tip 640, a stepped guide 641 and a stepped neck 642 similar to the stepped holes 62, 63.

Scan STEP 1 8. 1
The implant 4 having the maximum core diameter i5 is inserted into the existing third stepped hole 64.

Scan STEP 1 8. 2
The implant 4 with the maximum core diameter i5 is suitably placed in the third stepped hole 64.

14A and 14B
In this schematic representation, all perforated cross sections 61, 62, 63, 64 are provided in the jawbone before insertion of the implant 4 with the maximum core diameter i5 following the working cycle described above. Are positioned one above the other. Around the pilot hole 61—with pilot hole tip 610, pilot hole guide 611 and pilot hole neck 612—all other subsequent stepped holes 62, 63, 64—corresponding stepped tips 620, 630, 640 with associated stepped guides 621, 631, 641 and stepped necks 622, 632, 642-it is clear that they are centered and have the same drilling depth.

  The diameter b2 at the drill neck 12 of the pilot drill 1 is at least approximately equal to the diameter b2 'at the stepped guide 21 of the first step drill 2. Therefore, the resulting holes also have at least approximately equal diameters, i.e., pilot hole neck 612 and first step guide 621, both represented by d2. The hole diameter d1 was formed by the pilot guide 11 of the pilot drill 1 having the hole diameter b1. The hole diameter d3 or d4 is at least approximately equal to the diameter b3 in the drill neck 12 of the first step drill 2 and the diameter b3 ′ in the guide 21 of the second step drill 2 or the diameter b4 in the drill neck 12 of the second step drill 2 and the third. This is derived from the diameter b4 ′ of the guide 21 of the step drill 2.

  Drill diameters b2, b3, b4 at the drill necks 12, 22 of the tool used in advance, with a slight drill diameter b2 ', b3', b4 'in each step drill 2, for example from 1/100 mm to 1/10 mm It is preferable to measure smaller, and the tool is a pilot drill 1, a first step drill 2 or a second step drill 2. Therefore, the non-cutting external step guide 21 with the round guide blade 212 is easily transferred to the drill neck 612 of the pilot hole 61 or the step necks 622 and 632 of the second or third step holes 62 and 63. It is inserted and invaded. The drill necks 12 and 22 having beveled surfaces 123 and 223 and the tip angle β are reduced by the expert in reducing the actual diameters of b2 ′, b3 ′ and b4 ′ compared to the drill diameters b2, b3 and b4 at the drill necks 12 and 22. Derived from the diameter b3 ′ of the stepped guide 21 having the guide blade 212 or the diameter b4 of the drill neck 12 of the second step drill 2 and the diameter b4 ′ of the guide 21 of the third step drill 2.

14C.
In principle, the tip 41 of the implant 4 with the maximum diameter i5 is shown to lie in the cross section of the third stepped hole 64 with the diameter d5. The portion 411 rounded from the implant tip 41 fits well with the stepped tip 640 of the third stepped hole 64. The cross section of the step guide 641 of the step hole 64 is optimally smaller than the cross section of the conical portion 412 of the implant tip 41. However, in order to attach the implant 4 to the position shown, the implant has a cutting geometry 44 with a conical cutting area 441. Thereby, the particles of bone 5 are excised in the region of the cone 412 and the hole cross section is correspondingly enlarged. The separated bone particles are transported to the blade 44 or to an adjacent region, where the third stepped hole 64 is a cross section that is optimally larger than the implant 4 used here with the maximum diameter i5. Therefore, excessive bone compression is avoided and optimal primary stability of the tip 41 of the implant 4 is achieved immediately after implantation. Continuous progression with the resected bone particles is made at the stepped neck 642 of the third stepped hole 64 in the region of the external screw 421 of the implant 4. The stepped neck 642 with the diameter d5 is slightly larger than the core diameter i5 of the implant 4 so as to provide a space for the bone particles that have been cut and transported by the threaded blade region 442 therein.

The pilot drill of this invention is shown. 1B shows an enlarged detail X1 of FIG. 1A with a pilot drill tip. 1 shows a first step drill of the present invention having a minimum diameter. 2B shows the enlarged detail X2 of FIG. 2A with the tip of the first step drill. 2 shows a second step drill with an intermediate diameter. Fig. 3B shows an enlarged detail X3 of Fig. 3A with a second step drill tip. 3 shows a third step drill with an enlarged diameter. FIG. 4B shows an enlarged detail X4 of FIG. 4A with a third step drill tip. 1B shows the depth gauge of the pilot drill according to FIG. 1A. 2B shows a depth gauge of the first step drill according to FIG. 2A. 3D shows a depth gauge of the second step drill according to FIG. 3A. 4D shows a depth gauge of the third step drill according to FIG. 4A. 2B shows a known dental implant for insertion into a hole formed by a first step drill according to FIG. 2A. Starting from the starting state according to step 1 in FIG. 10, according to step 10 (for minimum implant diameter) in FIG. 11; according to step 14 (for intermediate implant diameter) in FIG. 12; according to step 18 (for maximum implant diameter) in FIG. The basic surgical handling of the drill set up to the formation of the finished hole is shown. FIG. 10: Step 1—Formation of a pilot guide in the jawbone with a pilot drill according to FIG. 1A. Step 2-Optical control of the formed pilot guide. Step 3-Insert pilot drill into existing pilot guide and finally determine hole direction. Step 4-Formation of pilot holes with full drilling depth. Step 5—Control of drilling depth with a depth gauge according to FIG. 5 for the pilot drill. Step 6—Optical control of the formed pilot hole. Starting from the starting state according to step 1 in FIG. 10, according to step 10 (for minimum implant diameter) in FIG. 11; according to step 14 (for intermediate implant diameter) in FIG. 12; according to step 18 (for maximum implant diameter) in FIG. The basic surgical handling of the drill set up to the formation of the finished hole is shown. FIG. 11: Step 6 (borrowing of Step 6 of FIG. 10) Optical control of the formed pilot hole. Step 7—Inserting the first step drill according to FIG. 2A into an existing pilot hole. Step 8-Formation of stepped holes to full drilling depth. Step 9—Control of drilling depth with depth gauge according to FIG. 6 for the first step drill. Step 10—Optical control of the formed first step hole. Step 10.1-Optional; installation of implant with minimum diameter according to FIG. Step 10.2—Optional; Installed implant with minimum diameter according to FIG. Starting from the starting state according to step 1 in FIG. 10, according to step 10 (for minimum implant diameter) in FIG. 11; according to step 14 (for intermediate implant diameter) in FIG. 12; according to step 18 (for maximum implant diameter) in FIG. The basic surgical handling of the drill set up to the formation of the finished hole is shown. FIG. 12: Step 10— (borrowing Step 10 of FIG. 11) Optical control of the first stepped hole formed. Step 11-Insert the second step drill according to Fig. 3A into the existing first step hole. Step 12—Formation of second step holes to full drilling depth. Step 13-Drilling depth control with depth gauge according to FIG. 7 for the second step drill. Step 14—Optical control of the provided second step hole. Step 14.1-Optional; installation of an implant with an intermediate diameter. Step 14.2-Optional; Installed implant with intermediate diameter. Starting from the starting state according to step 1 in FIG. 10, according to step 10 (for minimum implant diameter) in FIG. 11; according to step 14 (for intermediate implant diameter) in FIG. 12; according to step 18 (for maximum implant diameter) in FIG. The basic surgical handling of the drill set up to the formation of the finished hole is shown. FIG. 13: Step 14—Optical control of the second stepped hole provided (borrowing Step 14 of FIG. 12). Step 15-Inserting the third step drill according to Fig. 4A into the existing second step hole. Step 16-Formation of third step holes to full drilling depth. Step 17—Control of drilling depth with depth gauge according to FIG. 8 for the third step drill. Step 18—Optical control of the formed third step hole. Step 18.1-Optional; Placement of implant with maximum diameter. Step 18.2-Optional; Installed implant with maximum diameter. A representation of all perforated cross sections with respect to each other is shown. Fig. 4 shows a mutual representation of all perforation cross-sections with matching diameter signs of the guide and neck. Fig. 5 shows the tip of the implant with the largest diameter located in the third step drill.

Explanation of symbols

1. . . . . Pilot drill . . . . Step drill . . . . Depth gauge 4. . . . . 4. Dental implant . . . . Jawbone 10. . . . . Pilot tip 11. . . . . Pilot guide 12. . . . . Drill neck 13. . . . . Drill shaft 14. . . . . Dental joint 20. . . . . Stepped tip 21. . . . . Stepped guide 22. . . . . Drill neck 23. . . . . Drill shaft 24. . . . . Dental joint 30. . . . . Tip 31. . . . . Guide 32. . . . . Neck 33. . . . . Holding area 41. . . . . Implant tip 42. . . . . Shaft 43. . . . . Neck 44. . . . . Screw blade geometry 51. . . . . Cortex 52. . . . . Sponge 61. . . . . Pilot holes 62, 63, 64. . . Stepped hole 101. . . . Tip blade 112. . . . Guide blade 121. . . . Depth mark
122. . . . Spiral groove 123. . . . Oblique surface 124. . . . Step part 125. . . . Stepped blade 201. . . . Tip blade 212. . . . Guide blade 222. . . . Spiral groove 223. . . . Oblique surface 224. . . . Step 225. . . . Stepped blade 321. . . . Depth mark 332. . . . Head 331. . . . Transition unit 411. . . . Rounded portion 421. . . . External screw 441. . . . Conical blade region 442. . . . Screw blade region 611. . . . Pilot hole guide 612. . . . Pilot hole neck 620. . . . Stepped tip

Claims (15)

a) a pilot tip (10) having a tip edge (101) arranged at the top end of the pilot drill (1);
b) a pilot guide (11) extending from the pilot tip (10) in the direction of the corona end of the pilot drill (1);
c) a drill neck (12) located on top of the pilot guide (11) and having a drill diameter (b2) larger than the drill diameter (b1) of the pilot guide (11);
d) a drill shaft (13) located on top of the drill neck (12) to which the joint (14) can be connected as a corona end;
e) a guide blade (112) provided as a part of the contour shape on the side surface of the pilot guide (11);
f) one step (124) as a transition from the pilot guide (11) to the drill neck (12);
g) at least one stepped blade (125) in the step (124);
h) A pouch-shaped step formed in the jawbone (5) to accommodate the dental implant (4) with at least one spiral groove (122) and a beveled surface (123) defining the groove. In the pilot drill (1) for preparing the holes (62, 63, 64),
i) The tip (101) is sharply formed at the pilot tip (10) to sharpen the center;
j) The polishing part (111) extends from the tip blade (101) to the pilot guide (11);
k) A pilot drill (1) characterized in that a stepped blade (125) is sharply formed in the stepped portion (124); and l) a guide blade (112) is formed rounded and not sharply. a) the drill neck (12) with the beveled surface (123) is shaped to cut weakly; and b) the pilot guide (11) has a length in the range from 1.0 mm to 4.0 mm (l1 The pilot drill (1) according to claim 1, characterized in that a) A pilot drill (1) is formed on both blades, so that each has two tip blades (101), a polishing portion (111), a guide blade (112), a spiral groove (122), a beveled surface (123) and a stepped shape. Having a blade (125);
b) the drill neck (12) has at least the length of the insertion depth of the implant (4) to be used;
c) the pilot guide (11) has a length (l1) of 3.0 mm;
d) the pilot guide (11) has a diameter (b1) in the range of 1.5 mm and the drill neck (12) has a diameter (b2) in the range of 2.0 mm;
e) The tip angle (α) located between the tip blades (101) is located in a range smaller than 90 °;
f) A spiral groove (122) extends from the corona end of the drill neck (12) to the pilot tip (10), and the pilot guide (11) has a smaller diameter (b1) in which the spiral groove (122) is Only a small percentage of the total cross section present in the drill neck (12);
g) A plurality of visible depth marks (121) are attached to the drill neck (12) at equal or unequal intervals; and h) a joint (14) connected to the drill shaft (13) itself is standardized. The pilot drill (1) according to claim 1 or 2, characterized in that it is a dental joint. a) A pilot guide (11) provided with a pilot tip (10) has a stepped hole (62, 63, to be formed) by allowing the distal end of the pilot hole (61) to penetrate through the cortex (51) of the jawbone (5). 64), the position of which is formed to consist of a pilot hole guide part (611) and a pilot hole tip part (612);
b) The stepped portion (124) causes a drilling resistance significantly increased due to the completion of the pilot hole guide portion (611) and the tip end portion (612) after the skin layer (51) has penetrated, and the hole determined by this indication Formed to inspect direction (R);
c) a pointed guide blade (112) can correct the hole direction (R) within the conical correction range (K) without enlargement of the pilot hole guide (611); and d) drill The pilot drill (1) according to any one of the preceding claims, characterized in that the neck (12) is formed so as to form a pilot hole (61) to its final depth according to its dimensions. a) a stepped tip (20) disposed at the tip of the step drill (2) and having a tip blade (201);
b) a stepped guide (21) extending from the stepped tip (20) in the direction of the corona end of the step drill (2);
c) a drill neck (22) located above the step guide (21) and having a drill diameter (b3, b4, b5) larger than the drill diameter (b2 ′, b3 ′, b4 ′) of the step guide (21) )When;
d) a drill shaft (23) located at the top of the drill neck (22) to which the joint (24) can be connected as a corona end;
e) at least one guide blade provided as part of the contour shape on the side surface of the stepped guide (21);
f) one step (224) as a transition from the step guide (21) to the drill neck (22);
g) at least one stepped blade (225) in the step (224);
h) A pouch-shaped pilot hole (61) having at least one spiral groove (222) and a beveled surface (223) defining the groove and existing in the jawbone (5) with respect to the stepped hole (62). In the step drill (2) for enlarging the existing stepped holes (62, 63) with respect to the enlarged stepped holes (63, 64) as a housing for the dental implant (4)
i) the tip blade (201) is sharply formed on the stepped tip (20);
j) The polishing part (211) extends from the tip blade (201) to the stepped guide (21);
k) a stepped blade (225) is formed to cut into the step (224);
l) A step drill (2) characterized in that the guide blade (212) is formed round and sharp. a) the drill neck (12) with the beveled surface (223) is shaped to cut weakly; and b) the step guide (21) has a length (L2, L3, L4) in the range of 2.0 mm Step drill (2) according to claim 5, characterized in that a) A step drill (2) is formed in three blades, each of which has three tip blades (201), a polishing portion (211), a guide blade (212), a spiral groove (222), a beveled surface (223) and a step Having a blade (225);
b) the drill neck (22) has at least the insertion depth of the implant (4) to be used;
c) The stepped guide (21) has a diameter (b2 ′, b3 ′, b4 ′) in the range of 2.0 mm, 2.8 mm, 3.5 mm and the drill neck (22) is 2.8 mm, 3 Having a diameter (b3, b4, b5) in the range of .5 mm, 4.3 mm;
d) the tip angle (β) located between the tip blades (201) is located in a range greater than 90 °;
e) A spiral groove (222) extends from the corona end of the drill neck (22) to the stepped tip (20), where the stepped guide (21) has a smaller diameter (b2). ', B3', b4 ') have only a slightly higher proportion of the total cross section present in the drill neck (22);
f) A plurality of visible depth marks (221) are attached to the drill neck (22) at equal or unequal intervals; and g) the joint (24) connecting to the drill shaft (23) itself is standardized. Step drill (2) according to claim 5 or 6, characterized in that it is a dental joint. a) A step guide (21) is provided with a step tip (20) and a round guide blade (212), and a step drill (61) is installed in the pilot hole (61) or the step holes (63, 64). 2) centered and formed to align with each other during advancement along the pilot hole (61) or stepped hole (63, 64); and b) the stepped portion (224) has a stepped blade ( 225) and expanding the pilot hole (61) having a diameter (d1 / d2) to a diameter (d2 / d3) or a stepped hole (63, 63) having a diameter (d2 / d3, d3 / d4) The step drill according to any one of claims 5 to 7, wherein the step drill is formed to expand the diameter (d3 / d4, d4 / d5) of the stepped hole (63, 64). (2). a) A pouch-shaped pilot hole (61) is formed in preparation for a pouch-shaped stepped hole (62, 63, 64) formed in the jawbone (5) to accommodate the dental implant (4). With a pilot drill (1);
b) at least one first step drill (2) for enlarging the existing pilot hole (61) with respect to the stepped hole (62);
c) an optional second step drill (2) for the second enlargement of the existing stepped hole (62) to the further enlarged stepped hole (63);
d) an optional third step drill (2) for the third enlargement of the stepped hole (63) already doubled relative to the last enlarged stepped hole (64);
Consisting of
e) Pilot drill (1):
ea) a pilot tip (10) having a tip edge (101) arranged at the top end of the pilot drill (1);
eb) a pilot guide (11) extending from the pilot tip (10) in the direction of the corona end of the pilot drill (1);
ec) a drill neck (12) located on top of the pilot guide (11) and having a drill diameter (b2) larger than the drill diameter (b1) of the pilot guide (11);
ed) a drill shaft (13) located on top of the drill neck (12) to which the joint (14) can be connected as a corona end;
ee) at least one guide blade (112) provided as part of the contour on the side of the pilot guide (11);
ef) one step (124) as a transition from the pilot guide (11) to the drill neck (12);
eg) at least one stepped blade (125) in the step (124);
eh) at least one spiral groove (122) and a beveled surface (123) defining the groove; and f) the step drill (2):
fa) a stepped tip (20) disposed at the tip of the step drill (2) and having a tip edge (201);
fb) a stepped guide (21) extending from the stepped tip (20) in the direction of the corona end of the step drill (2);
fc) Drill neck (22) located above the step guide (21) and having a drill diameter (b3, b4, b5) larger than the drill diameter (b2 ′, b3 ′, b4 ′) of the step guide (21) )When;
fd) a drill shaft (23) located on top of the drill neck (22) to which the joint (24) can be connected as a corona end;
fe) at least one guide blade (212) provided as a part of the contour shape on the side surface of the stepped guide (21);
ff) one step (224) as a transition from the step guide (21) to the drill neck (22);
fg) at least one stepped blade (225) in the step (224);
fh) at least one spiral groove (222) and a beveled surface (223) defining the groove;
In a drill set having
g) For the pilot drill (1):
ga) the tip blade (101) is sharply formed at the pilot tip (10) to sharpen the center;
gb) the polishing part (111) extends from the tip blade (101) to the pilot guide (11);
gc) a stepped blade (125) is formed to cut at the stepped portion (124); and gd) a guide blade (112) is formed to have a rounded tip so as not to cut;
h) For step drill (2):
ha) The tip blade (201) is sharply formed at the stepped tip (20);
hb) the polishing portion (211) extends from the tip blade (201) to the stepped guide (21);
hc) a stepped blade (225) is formed to cut at the step (224); and hd) a guide blade (212) is formed with a rounded tip so as not to cut;
i) The diameter (b2 ′) of the first step drill (2) in the step guide (21) matches the diameter (b2) of the drill neck (12) of the pilot drill (1); and j) the step guide ( The diameter (b3 ′, b4 ′) of the second or third step drill (2) in 21) matches the diameter (b3, b4) of the drill neck (22) of the preceding first or second step drill (2). A drill set characterized by that.   The drill neck (12) having the beveled surface (123) of the pilot drill (1) is formed to cut weakly, and the pilot guide (11) has a length (L1 in the range from 1.0 mm to 4.0 mm). The drill set according to claim 9, further comprising: a) A pilot drill (1) is formed on both blades, so that each has two tip blades (101), a polishing portion (111), a guide blade (112), a spiral groove (122), a beveled surface (123) and a stepped shape. Having a blade (125);
b) the drill neck (12) has at least the length of the insertion depth of the implant (4) to be used;
c) the pilot guide (11) has a length (L1) of 3.0 mm;
d) the pilot guide (11) has a diameter (b1) in the range of 1.5 mm and the drill neck (12) has a diameter (b2) in the range of 2.0 mm;
e) The tip angle (α) located between the tip blades (101) is located in a range smaller than 90 °;
f) A spiral groove (122) extends from the corona end of the drill neck (12) to the pilot tip (10), and the pilot guide (11) has a smaller diameter (b1) in which the spiral groove (122) is Only a small percentage of the total cross section present in the drill neck (12);
g) A plurality of visible depth marks (121) are attached to the drill neck (12) at equal or unequal intervals; and h) a joint (14) that connects to the drill shaft (13) itself has been standardized The drill set according to claim 9 or 10, wherein the drill set is a dental joint. a) A pilot guide (11) provided with a pilot tip (10) has a stepped hole (62, 63, to be formed) by allowing the distal end of the pilot hole (61) to penetrate through the cortex (51) of the jawbone (5). 64), the position of which is formed to consist of a pilot hole guide part (611) and a pilot hole tip part (610);
b) The stepped portion (124) causes a drilling resistance significantly increased due to the completion of the pilot hole guiding portion (611) and the tip end portion (610) after the skin layer (51) has penetrated, and the hole determined by this indication Formed to inspect direction (R);
c) a pointed guide blade (112) can correct the hole direction (R) within the conical correction range (K) without enlargement of the pilot hole guide (611); and d) drill The drill set according to any one of claims 9 to 11, characterized in that the neck (12) is formed so as to form a pilot hole (61) to its final depth according to its dimensions.   The drill neck (22) with the beveled surface (223) of the step drill (2) is formed to cut weakly, and the step guide (21) has a length (l2, l3, l3 in the range of 1.0 mm). The drill set according to claim 9, comprising: l4). a) A step drill (2) is formed into three blades, each of which has three tip blades (201), a polishing section (211), a guide blade (212), a spiral groove (222), an oblique surface (223) and a step Having a blade (225);
b) the drill neck (22) has at least the insertion depth of the implant (4) to be used;
c) The stepped guide (21) has a diameter (b2 ′, b3 ′, b4 ′) in the range of 2.0 mm, 2.8 mm, 3.5 mm and the drill neck (22) is 2.8 mm, 3 Having a diameter (b3, b4, b5) in the range of .5 mm, 4.3 mm;
d) the tip angle (β) located between the tip blades (201) is located in a range greater than 90 °;
e) A spiral groove (222) extends from the corona end of the drill neck (22) to the stepped tip (20), where the stepped guide (21) has a smaller diameter (b2). ', B3', b4 ') have only a slightly higher proportion of the total cross section present in the drill neck (22);
f) A plurality of visible depth marks (221) are attached to the drill neck (22) at equal or unequal intervals; and g) a joint (24) connecting to the drill shaft (23) itself has been standardized. The drill set according to claim 9 or 13, wherein the drill set is a dental joint. a) A step guide (21) is provided with a step tip (20) and a round guide blade (212), and a step drill (61) is installed in the pilot hole (61) or the step holes (63, 64). 2) centered and formed to guide centering during advance along pilot hole (61) or stepped hole (63, 64); and b) stepped portion (224) is stepped blade (225) ) And expand the pilot hole (61) having the diameter (d1 / d2) to the diameter (d2 / d3) or the stepped hole (63, 64) having the diameter (d2 / d3, d3 / d4). The drill set according to claim 9, 13 or 14, which is formed to expand to a diameter (d 3 / d 4, d 4 / d 5) of the stepped hole (63, 64).

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